General topology | Boolean algebra | Functors
In mathematics, the Stone functor is a functor S: Topop → Bool, where Top is the category of topological spaces and Bool is the category of Boolean algebras and Boolean homomorphisms. It assigns to each topological space X the Boolean algebra S(X) of its clopen subsets, and to each morphism fop: X → Y in Topop (i.e., a continuous map f: Y → X) the homomorphism S(f): S(X) → S(Y) given by S(f)(Z) = f−1[Z]. (Wikipedia).
What was the purpose of Stonehenge? Why would ancient humans take so much effort to build this complex arrangement of massive stones? SUBSCRIBE | http://bit.ly/stdwytk-sub WEBSITE | http://bit.ly/stdwytk-home AUDIO PODCAST | http://bit.ly/stdwytk-audio-itunes TWITTER | http://bit.
From playlist Great Stuff
Decoding the ancient astronomy of Stonehenge
The solstice alignments of Stonehenge, explained. Join the Vox Video Lab: http://www.vox.com/join Subscribe to our channel! http://goo.gl/0bsAjO Note: A previous version of this video referred imprecisely to "Neolithic Britain" when discussing the Newgrange tomb in Ireland. We have remov
From playlist Is It Wrong to Dismantle Planets Playlist
Premieres Tuesday, November 16, 2010 at 8PM ET/PT on PBS (please check local listings). www.pbs.org/nova/stone
From playlist Ancient Worlds
GeoGebra 3D Calculator: When to Use?
GeoGebra 3D Calculator is one of the five apps in Calculator Suite. https://www.geogebra.org/calculator
From playlist GeoGebra Apps Intro: Which to USE?
Astronomy - Ch. 4: History of Astronomy (3 of 16) Ancient Structures: Stonehenge
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain how the ancient English Stonehenge celebrates summer solstice. Next video in this series can be seen at: http://youtu.be/XRlEpndkaBw
From playlist ASTRONOMY 4 HISTORY OF ASTRONOMY
GeoGebra Calculator Suite: https://www.geogebra.org/calculator
From playlist GeoGebra Tools
Stone Flooring | How It's Made
Once a time consuming, labor intensive task, the making of stone floors with elaborate designs can now be done in a factory in just hours. | http://www.sciencechannel.com/tv-shows/how-its-made/ Watch full episodes: http://bit.ly/HowItsMadeFullEpisodes Subscribe to Science Channel: http:/
From playlist How It's Made
GeoGebra Scientific Calculator: When to Use?
GeoGebra Scientific Calculator is a free easy-to-use version of a standard handled scientific calculator. https://www.geogebra.org/scientific
From playlist GeoGebra Apps Intro: Which to USE?
Clark Barwick - 1/3 Exodromy for ℓ-adic Sheaves
In joint work with Saul Glasman and Peter Haine, we proved that the derived ∞-category of constructible ℓ-adic sheaves ’is’ the ∞-category of continuous functors from an explicitly defined 1-category to the ∞-category of perfect complexes over ℚℓ. In this series of talks, I want to offer s
From playlist Summer School 2020: Motivic, Equivariant and Non-commutative Homotopy Theory
ITHT: Part 11- Quillen Adjunctions
Credits: nLab: https://ncatlab.org/nlab/show/Introduction+to+Homotopy+Theory#QuillenAdjunctions Animation library: https://github.com/3b1b/manim My own code/modified library: https://github.com/treemcgee42/youtub... Music: ► Artist Attribution • Music By: "KaizanBlu" • Track Na
From playlist Introduction to Homotopy Theory
Marble Machine Spoon Elevator 3D Model
Just for fun. It was based on several videos from Youtube about marble machines, and some of my own ideas. Modeled with Solidworks 2015. Rendered with Simlab Composer 6 Mechanical Edition. Gifs made with Photoscape. Renders edited with IrfanView.
From playlist Marble Machines
Clark Barwick - 3/3 Exodromy for ℓ-adic Sheaves
In joint work with Saul Glasman and Peter Haine, we proved that the derived ∞-category of constructible ℓ-adic sheaves ’is’ the ∞-category of continuous functors from an explicitly defined 1-category to the ∞-category of perfect complexes over ℚℓ. In this series of talks, I want to offer s
From playlist Summer School 2020: Motivic, Equivariant and Non-commutative Homotopy Theory
LambdaConf 2015 - How to Learn Haskell in Less Than 5 Years Chris Allen
Haskell is known for being hard, this is a result of pedagogy catching up to different ways of thinking about and structuring programs. We can make teaching ourselves and others something that is not only more effective, but enjoyable in its own right. Help us caption & translate this vid
From playlist LambdaConf 2015
Dustin Clausen - Toposes generated by compact projectives, and the example of condensed sets
Talk at the school and conference “Toposes online” (24-30 June 2021): https://aroundtoposes.com/toposesonline/ The simplest kind of Grothendieck topology is the one with only trivial covering sieves, where the associated topos is equal to the presheaf topos. The next simplest topology ha
From playlist Toposes online
Robert Burklund : The chromatic Nullstellensatz
CONFERENCE Recording during the thematic meeting : « Chromatic Homotopy, K-Theory and Functors» the January 26, 2023 at the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Jean Petit Find this video and other talks given by worldwide mathematicians on CIR
From playlist Topology
Yonatan Harpaz - New perspectives in hermitian K-theory III
For questions and discussions of the lecture please go to our discussion forum: https://www.uni-muenster.de/TopologyQA/index.php?qa=k%26l-conference This lecture is part of the event "New perspectives on K- and L-theory", 21-25 September 2020, hosted by Mathematics Münster: https://go.wwu
From playlist New perspectives on K- and L-theory
Christoph Winges: On the isomorphism conjecture for Waldhausen's algebraic K-theory of spaces
The lecture was held within the framework of the (Junior) Hausdorff Trimester Program Topology: "The Farrell-Jones conjecture" I will survey recent progress on the isomorphism conjecture for Waldhausen's "algebraic K-theory of spaces" functor, and how this relates to the original isomorp
From playlist HIM Lectures: Junior Trimester Program "Topology"
Sam Raskin - 1/2 What does geometric Langlands mean to a number theorist?
Sam Raskin (Univ. Texas)
From playlist 2022 Summer School on the Langlands program
The Tamagawa Number Formula via Chiral Homology - Dennis Gaitsgory
Dennis Gaitsgory Harvard University March 1, 2012 Let X a curve over F_q and G a semi-simple simply-connected group. The initial observation is that the conjecture of Weil's which says that the volume of the adelic quotient of G with respect to the Tamagawa measure equals 1, is equivalent
From playlist Mathematics
Create a Triangle with Given Area: Quick Formative Assessment with GeoGebra
GeoGebra Resource: https://www.geogebra.org/m/gbcbbx29
From playlist Geometry: Dynamic Interactives!